[RFI] 160m Noise - Revisited

[Larry Burke]

Hi, Paul. There's no rhyme or reason to the on/off cycles. It is off very
infrequently... almost always on. 

I can recommend the National RF device mentioned in my post to aid in your
search. Very handy device.

- Larry

-----Original Message-----
From: Paul Plants [mailto:plplants at hotmail.com] 
Sent: Thursday, September 14, 2017 8:30 PM
To: Larry Burke
Cc: RFI at contesting.com
Subject: Re: [RFI] 160m Noise - Revisited

Try timing on and off cycles. See if is same or near same time. 

I also have a noise on 20 meters appears to be centered 14.300 MHz. But runs
up and down the band all day long. This only started after a power outage
that was across the street neighbor has a small barn over the hill that
power was restored. I have driven the neighborhood within 2 mile radius
can't fine noise.

Paul
W3PLP
Sent from my iPad Air 2

> On Sep 14, 2017, at 7:52 PM, Larry Burke <wi5a at sbcglobal.net> wrote:
> 
> Back in May of this year I posted a video of a couple of noises that 
> were causing significant problems for me on 160m. One of those noises 
> long ago disappeared, leaving the remaining noise out in the open and 
> more visible on the spectrum scope. I've posted a new and improved 
> video of the current situation at 
> https://www.youtube.com/watch?v=LpmYHOxVYiA
> <https://www.youtube.com/watch?v=LpmYHOxVYiA&feature=youtu.be>
> &feature=youtu.be
> 
> 
> 
> At the recommendation of KB4T I purchased a National RF Model HFDF 
> Vector Gun kit. I use it mobile in conjunction with an Elecraft K3. It 
> works very well and seems to be indicating a source about 750 feet 
> north of me -- I think I have narrowed it down to one or two houses. 
> Before I go knocking on doors I'd like some input on possible emission
sources.
> 
> 
> 
> The noise is:
> 
> - Frequency stable. If it's "on" it's always on the same frequencies 
> with no drift
> 
> - Appears about every 8 kHz from about the top end of the BC band to 
> around
> 2 MHz
> 
> - Disappears from time-to-time but is on significantly more than it is
off.
> No apparent rhyme or reason for when it's on or off
> 
> 
> 
> Thoughts? 
> 
> 
> 
> - Larry K5RK
> 
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> Back in May of this year I posted a video of a couple of noises that 
> were causing significant problems for me on 160m. One of those noises 
> long ago disappeared, leaving the remaining noise out in the open and 
> more visible on the spectrum scope. I've posted a new and improved 
> video of the current situation at 
> https://www.youtube.com/watch?v=LpmYHOxVYiA
> <https://www.youtube.com/watch?v=LpmYHOxVYiA&feature=youtu.be>
> &feature=youtu.be
> 
> 
> 
> At the recommendation of KB4T I purchased a National RF Model HFDF 
> Vector Gun kit. I use it mobile in conjunction with an Elecraft K3. It 
> works very well and seems to be indicating a source about 750 feet 
> north of me -- I think I have narrowed it down to one or two houses. 
> Before I go knocking on doors I'd like some input on possible emission
sources.
> 
> 
> 
> The noise is:
> 
> - Frequency stable. If it's "on" it's always on the same frequencies 
> with no drift
> 
> - Appears about every 8 kHz from about the top end of the BC band to 
> around
> 2 MHz
> 
> - Disappears from time-to-time but is on significantly more than it is
off.
> No apparent rhyme or reason for when it's on or off
> 
> 
> 
> Thoughts? 
> 
> 
> 
> - Larry K5RK
> 
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi